Chokek-kod latch



Dec. 6, 1927'.

H. DREWS 'CHOKER ROD LATCH Filed March 25. 1927 In vemvr Hey/ ,277'6 ws,

ttorney Patented Dec. 6, 1927. r g UNITED STATES taster PATENT OFFICE.-

HENRY DREWS, OF OTTO, TEXAS.

CHOKER-ROD LATCH; V

AppIication filed March 25,, 1927. Serial is. 173,315.

This invention relates generally to choker rods of automobiles, particularly those of the Ford type, and has more particular reterence to a means whereby the rod may be secured in predetermined extended position with the end of permitting the proper functioning oi? the automobile engine beiiore the same has become properly warmed.

i It is well known that in the operatlon of a Ford automobile the choker rod is normally maintained in inactive position by a coil spring and.in order to maintain the air inlet valve oli the carburetor inclosed or partially closed position, it is necessary for the operator to manually retainthe choker rod in pulled out condition until the motor has become properly heated It is therefore the primary object of this invention to pro vide means wherebyithe choker rod may be secured in predetermined extended position so as to enable the driver to pay attention to other duties necessary in the proper operation of an automobilmat least until the motor has become sufficiently warm to facilitate the proper functioning of the same with the air inlet valve oi the carburetor in fully opened position.

One of the most important objects of the present invention is to provide a choker rod latch of this character that may be easily and inexpensively secured to the instrument board of an automobile, the same including means for positively engaging the usual thumb button of the choker red at any pre determined outward position of the same with respect to the instrument board. The construction of this latch is further of such a nature as to permit the locking member per se to be readily thrown downwardly with respect to the choker rod button for re leasing the same whereupon the carburetor air valve will be moved to fully open position by reason of the usual control spring therefor.

A further object is to provide a choker rod latch of this character that is extremely simple in construction and design and one that may be readily applied by the owner of the automobile.

lVith the foregoing and other objects in view as the nature or the invention will be better understood the same comprises the novel form, combination and arrangement of parts hereinafter more fully described, 6 shown in the accompanying drawing and claimed.

which extended a carburetor choke rod having the usual thumb button upon the inner end thereof and with which instrument I board is associated my improved choker rod latch, the same being disclosed as actually in use for maintaining the rod in outwardly drawn position. 7 i

Figure 2 is a front elevation of the device as attached to the instrument board, and

l igure is a detail longitudinal section taken substantially upon the line 33 of Figure 1.

Now having particular reference to the drawing, A indicates: the instrument board of an automobile, particularly those of the Ford type through an opening B in which is loosely arranged the usual carburetor choker rod C provided at its inner end with the usual thumb button D. My invention per se consists of a metallic plate 5 of predetermined shape and design that is rigidly secured to the inner face of the instrument board A beneath the opening B therein by a bolt and nut connection 6. This plate is of such a design as not to detract from the appearance of the automobile instrument board. the side edges thereof merging together at the upper end of the plate, said side edges being formed with inwardly extending flanges 7-7 of such tapering formation as to space the upper end of the plate 5 from the instrument board A as clearly indicated in Figures 1 and 2. The upper end of this plate 5 is formed with an opening 8 slightly above the opening B and the instrument board A in order that the choker rod G which extends upwardly at an incline may loosely pass therethrough. Upon the outer face of this plate 5 is a pair of L-brackets 9-9 between the outwardly extending portions of which is pivotally secured as at 10 the inner end of a narrow plate-like lever 11, the ends of which are preferably rounded as indicated in Figure 1. The inner edge of this plate-like lever is formed with spaced teeth 12 that are formed to extend at a slight obtuse angle toward the outer end of the lever as clearly indicated in Figure 1.

Obviously as the choker rod 0 is drawn through the opening in the instrument board and plates 5 by pulling upon the button D p arts the choker-ivalveeof the engine .carburetoe, not showmis; operated. After; the rod has, been pulled outwardly to the predetermined position, the plate like lever is swungup- Wardly so as to cause the engagement of'ad jacent teeth 8 of the lever upon oppositesideseof the plate like end of the button D, the same being held thereiirdue to thezbinding: action that will be occasioned between the teeth; and itheebutton: byxre'ason' of. the :slight angleof thegt'eethwvith respectto the transverse aXis of the: lever; Then it is desired to: permit the choker rod to move inwardly smythat;:the..ach'okeri valve will open; it will 7 ventionrv as consisting. of certain :detail structural elements ;it. is neverthelessato be. understood;that someichan'ges maybe made there in Without affecting the spirit and scope of the:appendedtnlaimsn Havinggthusxlescrilied:theinvention, what L'claim iS;::.+--

1; In 21-], latch: font automobilechoken rods wherein: the operating end; thereof" is pro vitle'dwith; anpnll; head i ail-lever pivoted. to; a

support beneatlnthe headed end ofithe. rod, and teeth fonmedtupointhe;edger of tlieilever adjacent the head of the rod for receiving sa-idwhead when said lever is swung toward the same.

2, Ina-.latoh for automobile engine choker rods wherein the outer end of the same projects. throughnthew automobile instrument board wherein said outer ends are provided with: pulling heads, a plate.forrattaelnnent to the instrument LbOQlTdQtlCljflCQllti saidrod and means pivotally associated; with: said, plate fon looking: engagement with; the heath at predetermined; entendedii positions of v the; same; With respect i to the: instrument board:

3. Inna .latcln'for; automobile engine choker rods whereinatheouter:end ()fiitllesstllllfii PlOr jeets-i: througlri. the: automobile; instrument board wherein: said'houter ends ui'e provided, with pullmgheads, a; plate forsattachinent to;

the 1 llflStillllllfiIllLbOfldfd adjacent said rod and for. locking: engagement; withflthe-head nt, prohead is disposed.v

Imtestnnony:whereot :Iiaflixuny signature,

HENRY: DREWS; 

